Examining the donation patterns of male and female contributors to congressional campaigns, we find that the donor networks of male and female candidates are both partisan and gendered. Female candidates receive greater support from female donors than their male counterparts with Democratic women raising the most money from female donors. Similarly, male donors give more money to male candidates, and in the general election, they are also significantly more supportive of Republican candidates. Distinct partisan and gendered donor networks are most apparent among incumbents, where women and men in both parties receive more from female and male donors, respectively, than their co-partisans. Furthermore, while both men and women exhibit gender affinity effects, female donors seem to prioritize surrogate representation over other traditional motivations such as competitiveness and access to powerful incumbents.